function SubmitForm(form, a, replace) {
	if (replace) {
		document.forms[form].action = a;
	} else {
		document.forms[form].action = document.forms[form].action + a;
	}
	document.forms[form].submit();
}

function CheckBoxes(form, v){
	for (var i=0; i < document.forms[form].elements.length; i++) {
		var j = document.forms[form].elements[i];
		if (j.type == "checkbox") { j.checked = v; }
	}
}

function CheckIt(form, a, replace, error) {
	var checks = 0;
	for (var i=0; i < document.forms[form].elements.length; i++) {
		var j = document.forms[form].elements[i];
		if (j.type == "checkbox" && j.checked) { checks = 1; break; }
	}
	if (checks == 0) {
		alert(error);
	} else {
		SubmitForm(form, a, replace);
	}
}

function CheckIt2(form, a, replace, error, sess, type) {
	var i = document.forms[form].playlist.selectedIndex;
	var j = document.forms[form].playlist.options[i].value;
	var err = 0;
	if (type == "add") {
		err = 1;
		for (var i=0; i < document.forms[form].elements.length; i++) {
			var j = document.forms[form].elements[i];
			if (j.type == "checkbox" && j.checked) { err = 0; break; }
		}
	} else { //play/lofi
		if(j == "new_zina_list") {
			err = 1;
		} else if (j == "zina_session_playlist" && sess == 0 ) {
			err = 1;
		}
	}
	if (err == 1)
		alert(error)
	else
		SubmitForm(form, a, replace);

}

function AddElements(f,x){
	var i;
	for(i=0;i < x.length; i++) {
		if (x.options[i].selected) {
			f.value += x.options[i].value +"\n";
		}
	}
}
//Not used...
function WindowOpen(url, title, w, h, sbars) {
	var sc_w = 800, sc_h = 600;
	if (window.screen) {
   	sc_w = screen.width;
   	sc_h = screen.height;
	}
	if (arguments.length > 5 && arguments[5] == 'full') {
		var w = sc_w, h = sc_h;
		x=y=0;
	} else {
		var x = ((sc_w-w)/2)+0, y = ((sc_h-h)/2)-20;
	}
	window.open(url, title,'toolbar=no,status=no,scrollbars='+sbars+',resizable=no,width='+w+',height='+h+',left='+x+',top='+y+',screenX='+x+',screenY='+y);
}

function xmlRequest(url,thanks) {
	req = false;
	if(window.XMLHttpRequest) {
		try {
			req = new XMLHttpRequest();
		} catch(e) {
			req = false;
		}
	} else if(window.ActiveXObject) {
		try {
			req = new ActiveXObject("Msxml2.XMLHTTP");
		} catch(e) {
			try {
				req = new ActiveXObject("Microsoft.XMLHTTP");
			} catch(e) {
				req = false;
			}
		}
	}
	if(req) {
		req.open("GET", url+'&hash='+Math.random(), true);
		req.onreadystatechange = function() {
			if (req.readyState==4) {
				alert(thanks);
			}
		}
		req.send('');
	}
}